Carrier Performance 15 48VR-A Owner's Information Manual

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I STEP1 STEP2Fig. 7 - To Shut-off Unit Electric CoolingMAINoN "_STEP3A07797To replace or inspect filters in accessory filter rack (See Fig. 2):1. Remove the filter access panel using a 5/16-in. nut driver.2. Remove the filter(s) by pulling it out of the unit. If thefilter(s) is dirty, clean or replace with a new one.When installing the new filter(s), note the direction of the airflowarrows on the filter frame which should be pointing at the indoorcoil.3. Reinstall filter access panel ensuring opening is air andwater tight.If you have difficulty locating your air filter(s) or have questionsconcerning proper filter maintenance, contact your dealer forinstructions. When replacing filters, always use the same size andtype of filter that was supplied originally by the installer.Fans and Fan MotorsPeriodically check the condition of fan wheels and housings andfan motor shaft bearings. Contact your dealer for the requiredannual maintenance.Heat ExchangerTo ensure dependable and efficient heating operation, the heatexchanger should be checked by a qualified maintenance personbefore each heating season, and cleaned when necessary. Thischeckout should not be attempted by anyone not having therequired expertise and equipment to properly do the job. Contactyour dealer for the required periodic maintenance.Indoor and Outdoor CoilsCleaning of the coils should only be done by qualified servicepersonnel. Contact your dealer for the required annualmaintenance.Condensate DrainThe drain pan and condensate drain line should be checked andcleaned at the same time the cooling coils are checked by yourdealer.CompressorAll compressors are factory shipped with a normal charge of thecorrect type of refrigeration grade oil. A compressor should rarelyrequire additional oil.Condenser (Outdoor) FanPERSONAL INJURY AND UNIT DAMAGEHAZARDFailure to follow this warning could result in personaliniury, death or property damage.Do not insert sticks, screwdrivers, or any other objects intorevolving fan blades.The fan must be kept free of all obstructions to ensure propercooling. Contact your dealer for any required service.Electrical Controls and WiringElectrical controls are difficult to check without properinstrumentation. If there are any discrepancies in the operatingcycle, contact your local dealer and request service.Refrigerant CircuitThe refrigerant circuit is difficult to check for leaks without theproper equipment. If inadequate cooling is suspected, contact yourlocal dealer for service.EXPLOSION AND ENVIRONMENTAL HAZARDFailure to follow this warning could result in personalinjury, death or property damage.System under pressure. Relieve pressure and recover allrefrigerant before system repair or final unit disposal. Useall service ports and open all flow-control devices,including solenoid valves.Unit PanelsAfter performing any maintenance or service on the unit, be sureall panels are fastened securely in place to prevent rain fromentering unit cabinet and to prevent disruption of the correct unitairflow pattern.Combustion Area and Vent SystemFor proper and safe operation, the furnace needs air for combustionand ventilation. The air openings, on the furnace, the air openingsto the area in which the furnace is installed, and the spacing aroundthe furnace must not be blocked or obstructed.The combustion area and vent system should be inspected visuallybefore each heating season. The normal accumulation of dirt, soot,rust, and scale can result in loss of efficiency and improper

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